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Phase-shift analysis for He3(p,p)He3

Tombrello, T. A. (1965) Phase-shift analysis for He3(p,p)He3. Physical Review, 138 (1B). B40-B47. ISSN 0031-899X. doi:10.1103/PhysRev.138.B40.

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A phase-shift analysis based on the scattering and polarization data for the reaction He3(p, p)He3 has been made for proton energies between 1.0 and 11.5 MeV. The singlet and triplet S-wave phase shifts are found to be negative and approximately equal; they are in good agreement with the resonating-group calculations of Bransden and Robertson. The P-wave phase shifts are positive and increase with energy; a single-level parametrization of these phase shifts indicates the possible presence of triplet states with Jπ=2-, 1-, 0- at center-of-mass energies 4.74, 6.15, and 7.94 MeV above the p + He3 threshold. All three levels have reduced widths that are comparable with the Wigner limit. The presence of a broad singlet 1- level at 9.8 MeV is indicated with somewhat less confidence.

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Additional Information:©1965 The American Physical Society. Received 4 November 1964. I would like to express my appreciation to Yale University and Brookhaven National Laboratory for financial support of part of this work. A special acknowledgement is also due Dr. A. C. L. Barnard and Dr. D. G. McDonald for providing their experimental results in advance of publication.
Issue or Number:1B
Record Number:CaltechAUTHORS:TOMpr65
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3513
Deposited By: Tony Diaz
Deposited On:12 Jun 2006
Last Modified:08 Nov 2021 19:56

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